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Finding the Fourth Proportional to 42,679.72, 58,892.16 and 23,813.20

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Solution

The fourth proportional to 42,679.72, 58,892.16 and 23,813.20 is: 32,858.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,679.72 : 58,892.16 = 23,813.20 : x
  2. Step 2: Convert to fraction form
    42,679.72/58,892.16 = 23,813.20/x
  3. Step 3: Cross multiply
    42,679.72x = 58,892.16 × 23,813.20
  4. Step 4: Simplify right side
    42,679.72x = 1,402,410,784.51
  5. Step 5: Solve for x
    x = 1,402,410,784.51/42,679.72
  6. Step 6: Final answer
    x = 32,858.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.